CN110441894A - A kind of zoom lens - Google Patents
A kind of zoom lens Download PDFInfo
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- CN110441894A CN110441894A CN201910736013.8A CN201910736013A CN110441894A CN 110441894 A CN110441894 A CN 110441894A CN 201910736013 A CN201910736013 A CN 201910736013A CN 110441894 A CN110441894 A CN 110441894A
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- 239000011521 glass Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000003384 imaging method Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 description 7
- 230000004075 alteration Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/008—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras designed for infrared light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/009—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras having zoom function
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Lenses (AREA)
Abstract
The invention discloses a kind of zoom lens, including sensitive chip, the side of sensitive chip is equipped with fixed the first lens group and the third lens group of the opposite sensitive chip of energy, the third lens group is arranged between the first lens group and sensitive chip, the 4th lens group that can be mobile relative to sensitive chip is equipped between the third lens group and sensitive chip, the second lens group gradually drawn close to the third lens group when the focusing when camera lens from short focus to long-focus is equipped between first lens group and the third lens group, being equipped between second lens group and the third lens group can control the diaphragm into camera lens amount of beam；The focal length of first lens group is positive, and the focal length of the second lens group is negative, and the focal length of the third lens group is positive, and the focal length of the 4th lens group is positive；The third lens group includes one piece of aspherical lens, and the 4th lens group includes one piece of aspherical lens.The transmitance of camera lens of the present invention is higher, and imaging effect is good, high resolution, distorts small, small in size, image planes are big and infrared confocal.
Description
[technical field]
The present invention relates to a kind of zoom lens.
[background technique]
Zoom lens is widely applied in daily life at present, and Vehicles Collected from Market is toward the side of high-resolution and high image quality
It is bigger using pixel in order to obtain better image quality to development, the more chips of pixel be solve the problems, such as it is basic
One of approach, but current safety monitoring, monitoring road conditions device have the following disadvantages:
Common zoom lens can not often accomplish that big image planes are compatible with volume, and image planes increase can cause camera lens volume simultaneously
Change dramatically, " camera lens of left and right, image planes size reaches the monitoring camera of big picture currently on the market, such as chip 1.7
9.5mm's, be tight shot mostly, is difficult to control when monitoring distance and changing, and length is longer, typically larger than 70mm；
Resolution ratio is low, and the monitoring camera of the high image quality of mainstream, resolution ratio are mostly 1080p, pixel number on the market at present
2000000, however as the promotion of data transmission bauds, the picture transmission of higher image quality is possibly realized, and 2,000,000 pixels are not
It is able to satisfy demand.The camera lens image planes of the 1080P of mainstream are mainly 1/2.8 at present ", use effective imaging face diagonal 6.2mm
1/2.8 " CMOS chip, pixel size only has 2.8 μm, and resolution ratio is not very high.And due to pixel very little,
The performances such as its photonasty and color rendition are all less desirable, are badly in need of performance improvement；
Monitoring camera currently on the market, lens optical changes greatly under different focal length substantially, is unfavorable for applying
In the recognition of face currently gradually popularized, the artificial intelligence related fields such as Car license recognition；
Monitoring camera currently on the market, is non-infrared confocal camera lens substantially, therefore the occasion more in optical wavelength section
As at dusk, or at night when having part lighting, the picture of shooting can not be integrally clear, always have obscure portions.
[summary of the invention]
It is obtained in the case where The purpose of the present invention is to overcome the shortcomings of the prior art and to provide a kind of less number of lenses higher
The transmitance of quality, and small volume, camera lens is higher, and imaging effect is good, keeps picture whole under the conditions of existing for a variety of wave bands
Body is all clear, high-resolution, small distortion, small size, big image planes and infrared confocal zoom lens.
The present invention is achieved by the following technical solutions:
A kind of zoom lens, the sensitive chip 5 including light can be changed into electric signal, the one of the sensitive chip 5
Side be equipped with can the first fixed lens group 1 of opposite sensitive chip 5 and the third lens group 3, the setting of the third lens group 3 is the
Being equipped between one lens group 1 and sensitive chip 5, between the third lens group 3 and sensitive chip 5 can opposite sensitive chip 5
The 4th mobile lens group 4 is equipped with when camera lens is from short focus to focal length between first lens group 1 and the third lens group 3
Away from focusing when the second lens group 2 for gradually being drawn close to the third lens group 3, second lens group 2 and the third lens group 3 it
Between be equipped with and can control diaphragm 6 into camera lens amount of beam；The focal length of first lens group 1 is positive, second lens group 2
Focal length be negative, the focal length of the third lens group 3 is positive, and the focal length of the 4th lens group 4 is positive；The third lens group 3
Including one piece of aspherical lens, the 4th lens group 4 includes one piece of aspherical lens.
Zoom lens as described above, it is characterised in that the aspherical lens are Glass aspheric eyeglass.
Zoom lens as described above, it is characterised in that first lens group 1 includes successively setting from object side to image side
The third eyeglass 13 that the second eyeglass 12 and focal length that the first eyeglass 11, the focal length that the focal length set is negative are positive are positive
Zoom lens as described above, it is characterised in that second lens group 2 includes successively setting from object side to image side
The 6th eyeglass 23 that the 5th eyeglass 22 and focal length that the 4th eyeglass 21, the focal length that the focal length set is negative are negative are positive.
Zoom lens as described above, it is characterised in that the third lens group 3 includes successively setting from object side to image side
The 9th eyeglass 33 that the 8th eyeglass 32 and focal length that the 7th eyeglass 31, the focal length that the focal length set is positive are positive are negative, described
Seven eyeglasses 31 are aspherical lens, and the 8th eyeglass 32 and the 9th eyeglass 33 form cemented doublet.
Zoom lens as described above, it is characterised in that the 4th lens group 4 includes successively setting from object side to image side
The 12nd eyeglass 43, the focal length that the 11st eyeglass 42, the focal length that the tenth eyeglass 41, the focal length that the focal length set is positive are positive are negative be
The 14th eyeglass 45 that the 13rd negative eyeglass 44 and focal length are positive, the tenth eyeglass 41 is aspherical lens, described
11st eyeglass 42 and the 12nd eyeglass 43 form cemented doublet.
Zoom lens as described above, it is characterised in that the aspherical lens and the 4th lens of the third lens group 3
The surface shape of the aspherical lens of group 4 meets following equation:
In formula, parameter c is curvature corresponding to radius, and r is radial coordinate, unit and length of lens unit phase
Together, k is circular cone whose conic coefficient.When k-factor is less than -1, face shape curve is hyperbola, is parabola when being equal to -1, between -
It is ellipse when between 1 to 0, is circle when equal to 0, to be oblate when being greater than 0, α1To α8It respectively indicates corresponding to each radial coordinate
Coefficient.
Zoom lens as described above, it is characterised in that the interval between first lens group 1 and the third lens group 3
For 22.3mm, between the second lens group 2 and the third lens group 3 between be divided into 13.2-25.7mm, the third lens group 3 and the 4th is thoroughly
0.5-2.5mm is divided between lens group 4, the 4th lens group 4 is 4.76-6.76mm at a distance from 5 image planes of sensitive chip.
Compared with prior art, the present invention has the following advantages:
1, zoom lens of the invention has used 4 eyeglass groups, is equipped between the first lens group 1 and the third lens group 3
The interval of energy second lens group 2 mobile relative to sensitive chip 5, the first lens group 1 and the second lens group 2 is variation, third
The interval of lens group 3 and the second lens group 2 is variation, and the focal length of camera lens occurs for the variation of preceding 3 eyeglasses group's interblock space
Variation, the 4th eyeglass group are used for focus function, and camera lens reaches 10mm in short focus focal length, and focal length focal length is greater than 30mm, relative to
The short focus focal length of the camera lens of the prior art, zoom lens of the invention is shorter, and focal length focal length is longer；
2, zoom lens of the invention has been used containing 2 pieces of non-spherical glass lens in interior 14 pieces of eyeglasses, in less eyeglass number
Higher quality, and small volume are obtained in the case where amount, the transmitance of camera lens is also higher；
3, zoom lens of the invention uses iris diaphgram, and can guarantee zoom whole process aperture standard-sized sheet, at nearly burnt end
Reach 1.70 hereinafter, there is high photosensitive property with focal length end FNO, in the case where adjusting aperture variation, is suitble to a variety of illuminations
It is used under situation, clarity can also be adjusted, improve lens effect；
4, zoom lens of the invention uses Glass aspheric eyeglass, rather than plastic aspherical element eyeglass, therefore temperature to become
Changing influences very little to the performance of camera lens, can be used in a variety of contexts；
5, entire camera lens of the invention is using the first lens group as highest point, and between the first lens group and sensitive chip away from
Off normal set be it is not changed, length is less than 50mm, and camera lens is small in size；
6, the present invention can reach the resolution ratio higher than 8M (8,000,000 pixel of pixel), by the 1.8 of 9.5mm " CCD for,
The present invention can achieve center resolution higher than 200lp/mm, periphery 0.7H (70% diagonal positions) high resolution in 180lp/
Mm, high resolution；
7, zoom lens of the invention realizes AF automatic focusing function using the 4th lens group, from farthest infinite as far as most
Close 1000mm microspur can be at clearly image, and imaging effect is good；
8, camera lens of the invention realizes whole infrared confocal, in visible wavelength section 430nm-650nm and infrared lamp wave
Long section 830nm-870nm can reach clearly simultaneously, therefore existing for a variety of wave bands under the conditions of keeps picture entirety all clear.
[Detailed description of the invention]
Fig. 1 is system optics figure of the invention.
[specific embodiment]
The invention will be further described below in conjunction with the accompanying drawings:
As shown in Figure 1, a kind of zoom lens, the sensitive chip 5 including light can be changed into electric signal, described is photosensitive
The side of chip 5 is equipped with fixed the first lens group 1 and the third lens group 3 of the opposite sensitive chip 5 of energy, the third lens group
3 are arranged between the first lens group 1 and sensitive chip 5, and being equipped between the third lens group 3 and sensitive chip 5 can be opposite
The 4th mobile lens group 4 of sensitive chip 5, being equipped between first lens group 1 and the third lens group 3 can relatively photosensitive core
The second mobile lens group 2 of piece 5, second lens group 2 in change procedure of the camera lens from short focus to long-focus gradually
It is drawn close to the third lens group 3, being equipped between second lens group 2 and the third lens group 3 can control into camera lens amount of beam
Diaphragm 6.The third lens group 3 includes one piece of aspherical lens, and the 4th lens group 4 includes one piece of aspherical mirror
Piece.
The present invention is made of 14 pieces of eyeglasses.The whole focal length of first lens group 1 is positive, and first lens group 1 is by three pieces of mirrors
Piece composition, including the first eyeglass 11, the second eyeglass 12 and third eyeglass 13 set gradually from object side to image side, wherein the first mirror
The focal length of piece 11 is negative, and the focal length of the second eyeglass 12 and third eyeglass 13 is positive.12 groups of plastics of first eyeglass 11 and the second eyeglass
Eyeglass is closed, it can effective correcting chromatic aberration.
The whole focal length of second lens group 2 is negative, which is made of three pieces of eyeglasses, including from object side to picture
The 4th eyeglass 21, the 5th eyeglass 22 and the 6th eyeglass 23 that side is set gradually, wherein the focal length of the 4th eyeglass 21 is negative, the 5th mirror
The focal length of piece 22 is negative, and the focal length of the 6th eyeglass 23 is positive.4th eyeglass 21 is using high refractive index and the material of high dispersion is made,
Distortion of the camera lens in short focus can be effectively corrected, while the resolution ratio under short focus state can be increased substantially.5th mirror
Piece 22 and the 6th eyeglass 23 form cemented doublet, can effective correcting chromatic aberration.
3 whole focal length of the third lens group is positive, and the third lens group 3 is made of three pieces of eyeglasses, including from object side to image side
The 7th eyeglass 31, the 8th eyeglass 32 and the 9th eyeglass 33 set gradually, wherein the focal length of the 7th eyeglass 31 is positive, the 8th eyeglass
32 focal length is positive, and the focal length of the 9th eyeglass 33 is negative.7th eyeglass 31 is Glass aspheric eyeglass, before the third lens group 3
End can correct most aberration using Glass aspheric eyeglass, so that camera lens obtains higher image quality, while also can
Reduce the third lens group 3 at a distance from the first lens group 1 and sensitive chip 5, reduces camera lens volume, and the mouth of the third lens group 3
Diameter is minimum, can reduce camera lens cost using aspherical lens.8th eyeglass 32 and the 9th eyeglass 33 form cemented doublet, Ke Yiyou
The correcting chromatic aberration of effect obtains infrared light and the confocal effect of luminous ray, and the picture color reduction shot is more preferable.
The whole focal length of 4th lens group 4 is positive, and the 4th lens group 4 can be made of five pieces of eyeglasses, including from object side to
The 12nd mirror that the 11st eyeglass 42, the focal length that the tenth eyeglass 41, the focal length that the focal length that image side is set gradually is positive are positive are negative
The 14th eyeglass 45 that the 13rd eyeglass 44 and focal length that piece 43, focal length are negative are positive.11st eyeglass 42 and the 12nd eyeglass
43 composition cemented doublets, primarily serve focusing effect, and positive and negative combination can effectively reduce the picture of camera lens in zooming procedure
Difference variation, and the tenth eyeglass 41 is aspherical lens, can greatly reduce shot field curvature.
The surface shape of the aspherical lens of the aspherical lens of the third lens group 3 and the 4th lens group 4 meets with lower section
Journey:
In formula, parameter c is curvature corresponding to radius, and r is radial coordinate, unit and length of lens unit phase
Together, k is circular cone whose conic coefficient.When k-factor is less than -1, face shape curve is hyperbola, is parabola when being equal to -1, between -
It is ellipse when between 1 to 0, is circle when equal to 0, to be oblate when being greater than 0, α1To α8It respectively indicates corresponding to each radial coordinate
Coefficient, the geomery of both-sided aspherical before and after lens can be accurately set by the above parameter.
Camera lens FNO=EFL (focal length)/D (diaphragm diameter), for imaging lens, diaphragm diameter is bigger, and light passing amount is got over
Greatly；Due to sensor meeting adjust automatically exposure value under general environment, at this time just than less going out the good of FNO numerical value difference camera lens
Bad, but under the environmental condition of low-light (level), exposure sensor has arrived the limit, therefore the small camera lens of FNO numerical value has than preferable
Performance, zoom lens of the invention uses iris diaphgram 6, and nearly burnt end and focal length end FNO numerical value be attained by 1.7 with
Under, full focal length section has high photosensitive property, in the case where adjusting aperture variation, it is suitble to use under a variety of illuminating positions,
Clarity can also be adjusted.
Name the actual design case of a high-power zoom lens:
Group's zoom, focusing mobile range:
Be divided into 22.3mm between first lens group 1 and the third lens group 3, the second lens group 2 and the third lens group 3 it
Between between be divided into 13.2-25.7mm, between the third lens group 3 and the 4th lens group 4 between be divided into 0.5-2.5mm, the 4th lens
Group 4 is 4.76-6.76mm at a distance from 5 image planes of sensitive chip.
Claims (8)
1. a kind of zoom lens, it is characterised in that: including sensitive chip (5), the side of the sensitive chip (5) is equipped with can phase
To sensitive chip (5) fixed first lens group (1) and the third lens group (3), the third lens group (3) is arranged first
Between lens group (1) and sensitive chip (5), being equipped between the third lens group (3) and sensitive chip (5) can be relatively photosensitive
The 4th mobile lens group (4) of chip (5), be equipped between first lens group (1) and the third lens group (3) work as camera lens from
Focusing from short focus to long-focus when the second lens group (2) for gradually being drawn close to the third lens group (3), second lens group
(2) diaphragm (6) that can control into camera lens amount of beam is equipped between the third lens group (3)；First lens group (1)
Focal length is positive, and the focal length of second lens group (2) is negative, and the focal length of the third lens group (3) is positive, the 4th lens group
(4) focal length is positive；The third lens group (3) includes one piece of aspherical lens, and the 4th lens group (4) includes one
Piece aspherical lens.
2. zoom lens according to claim 1, it is characterised in that: the aspherical lens are Glass aspheric mirror
Piece.
3. zoom lens according to claim 1, it is characterised in that: first lens group (1) include from object side to
The third mirror that the second eyeglass (12) and focal length that the first eyeglass (11), the focal length that the focal length that image side is set gradually is negative are positive are positive
Piece (13), first eyeglass (11) and the second eyeglass (12) form cemented doublet.
4. zoom lens according to claim 1, it is characterised in that: second lens group (2) include from object side to
The 6th mirror that the 5th eyeglass (22) and focal length that the 4th eyeglass (21), the focal length that the focal length that image side is set gradually is negative are negative are positive
Piece (23), the 5th eyeglass (22) and the 6th eyeglass (23) form cemented doublet.
5. zoom lens according to claim 1, it is characterised in that: the third lens group (3) include from object side to
The 9th mirror that the 8th eyeglass (32) and focal length that the 7th eyeglass (31), the focal length that the focal length that image side is set gradually is positive are positive are negative
Piece (33), the 7th eyeglass (31) are aspherical lens, and the 8th eyeglass (32) and the 9th eyeglass (33) organize plastic
Close eyeglass.
6. zoom lens according to claim 1, it is characterised in that: the 4th lens group (4) include from object side to
The 11st eyeglass (42), the focal length that the tenth eyeglass (41), the focal length that the focal length that image side is set gradually is positive are positive be negative the tenth
The 14th eyeglass (45) that the 13rd eyeglass (44) and focal length that two eyeglasses (43), focal length are negative are positive, the tenth eyeglass
It (41) is aspherical lens, the 11st eyeglass (42) and the 12nd eyeglass (43) form cemented doublet.
7. zoom lens according to claim 1, it is characterised in that: the aspherical lens of the third lens group (3)
Meet following equation with the surface shape of the aspherical lens of the 4th lens group (4):
In formula, parameter c is curvature corresponding to radius, and r is radial coordinate, and unit is identical with length of lens unit, and k is
Circular cone whose conic coefficient.When k-factor be less than -1 when face shape curve be hyperbola, be equal to -1 when be parabola, between -1 to 0 it
Between when for ellipse, be equal to 0 when for circle, be greater than 0 when for oblateness, α1To α8Respectively indicate coefficient corresponding to each radial coordinate.
8. zoom lens according to claim 1, it is characterised in that: first lens group (1) and the third lens group
(3) 22.3mm is divided between, between the second lens group (2) and the third lens group (3) between be divided into 13.2-25.7mm,
Be divided into 0.5-2.5mm between three lens groups (3) and the 4th lens group (4), the 4th lens group (4) and sensitive chip (5) as
The distance in face is 4.76-6.76mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736013.8A CN110441894A (en) | 2019-08-09 | 2019-08-09 | A kind of zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910736013.8A CN110441894A (en) | 2019-08-09 | 2019-08-09 | A kind of zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110441894A true CN110441894A (en) | 2019-11-12 |
Family
ID=68434311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910736013.8A Pending CN110441894A (en) | 2019-08-09 | 2019-08-09 | A kind of zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110441894A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363306A (en) * | 2020-11-30 | 2021-02-12 | 深圳融合光学科技有限公司 | Day and night zooming monitoring lens with high resolution and large target surface of 10-30mm and imaging method |
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| CN108594409A (en) * | 2018-05-04 | 2018-09-28 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, low cost, the varifocal optical system without veiling glare |
| CN108681052A (en) * | 2018-05-18 | 2018-10-19 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, small size, infrared confocal varifocal optical system |
| CN208297822U (en) * | 2018-05-18 | 2018-12-28 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, infrared confocal zoom lens |
| CN210155399U (en) * | 2019-08-09 | 2020-03-17 | 中山联合光电科技股份有限公司 | Zoom lens |
-
2019
- 2019-08-09 CN CN201910736013.8A patent/CN110441894A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594409A (en) * | 2018-05-04 | 2018-09-28 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, low cost, the varifocal optical system without veiling glare |
| CN108681052A (en) * | 2018-05-18 | 2018-10-19 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, small size, infrared confocal varifocal optical system |
| CN208297822U (en) * | 2018-05-18 | 2018-12-28 | 中山联合光电科技股份有限公司 | High-resolution, big image planes, infrared confocal zoom lens |
| CN210155399U (en) * | 2019-08-09 | 2020-03-17 | 中山联合光电科技股份有限公司 | Zoom lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112363306A (en) * | 2020-11-30 | 2021-02-12 | 深圳融合光学科技有限公司 | Day and night zooming monitoring lens with high resolution and large target surface of 10-30mm and imaging method |
| CN112363306B (en) * | 2020-11-30 | 2024-03-01 | 福建福光天瞳光学有限公司 | High-resolution large-target-surface 10-30mm day-night zoom monitoring lens and imaging method |
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